/* ============================================
   Jochen Thoelen - CV Website Styles
   Modern, Responsive, Light/Dark Mode
   ============================================ */

/* CSS Variables for Light/Dark Mode */
:root {
    /* Light Mode Colors - Softer, warmer tones */
    --bg-primary: #faf9f7;
    --bg-secondary: #f5f4f2;
    --bg-tertiary: #ebe9e6;
    --bg-card: #faf9f7;
    --bg-navbar: rgba(250, 249, 247, 0.95);
    
    --text-primary: #2d3748;
    --text-secondary: #4a5568;
    --text-muted: #718096;
    --text-inverse: #faf9f7;
    
    --accent-primary: #3b82f6;
    --accent-secondary: #6366f1;
    --accent-gradient: linear-gradient(135deg, #3b82f6 0%, #6366f1 100%);
    --accent-hover: #2563eb;
    
    --border-color: #e2e0dc;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.06), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.06), 0 4px 6px -2px rgba(0, 0, 0, 0.03);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.06), 0 10px 10px -5px rgba(0, 0, 0, 0.03);
    
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
    
    --navbar-height: 80px;
}

/* Dark Mode Colors */
[data-theme="dark"] {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --bg-card: #1e293b;
    --bg-navbar: rgba(15, 23, 42, 0.95);
    
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --text-inverse: #0f172a;
    
    --accent-primary: #60a5fa;
    --accent-secondary: #818cf8;
    --accent-gradient: linear-gradient(135deg, #60a5fa 0%, #818cf8 100%);
    --accent-hover: #3b82f6;
    
    --border-color: #334155;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -2px rgba(0, 0, 0, 0.3);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 10px 10px -5px rgba(0, 0, 0, 0.4);
}

/* Reset & Base Styles */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background-color var(--transition-base), color var(--transition-base);
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ============================================
   Navigation
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--navbar-height);
    background: var(--bg-navbar);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: all var(--transition-base);
}

.navbar.scrolled {
    height: 64px;
    box-shadow: var(--shadow-md);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-text {
    width: 44px;
    height: 44px;
    background: var(--accent-gradient);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.25rem;
    color: white;
    transition: transform var(--transition-base);
}

.nav-logo:hover .logo-text {
    transform: scale(1.05) rotate(-5deg);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-link {
    padding: 8px 16px;
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 20px;
    height: 2px;
    background: var(--accent-primary);
    transition: transform var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
    color: var(--accent-primary);
}

.nav-link:hover::after,
.nav-link.active::after {
    transform: translateX(-50%) scaleX(1);
}

/* Navigation Actions (Language + Theme) */
.nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-left: auto;
}

.lang-switcher {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.875rem;
    transition: all var(--transition-base);
    border: 2px solid transparent;
}

.lang-switcher:hover {
    background: var(--accent-primary);
    color: white;
    border-color: var(--accent-primary);
    transform: translateY(-2px);
}

.lang-icon {
    font-size: 1rem;
    color: var(--accent-primary);
}

.lang-code {
    font-size: 0.8rem;
}

.theme-toggle {
    width: 44px;
    height: 44px;
    border: none;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: all var(--transition-base);
}

.theme-toggle:hover {
    background: var(--accent-primary);
    color: white;
    transform: rotate(15deg);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 44px;
    height: 44px;
    background: none;
    border: none;
    cursor: pointer;
    gap: 6px;
}

.hamburger {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    position: relative;
    transition: all var(--transition-fast);
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all var(--transition-fast);
}

.hamburger::before {
    top: -7px;
}

.hamburger::after {
    top: 7px;
}

.nav-toggle.active .hamburger {
    background: transparent;
}

.nav-toggle.active .hamburger::before {
    transform: rotate(45deg);
    top: 0;
}

.nav-toggle.active .hamburger::after {
    transform: rotate(-45deg);
    top: 0;
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: var(--navbar-height);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: var(--accent-gradient);
    opacity: 0.03;
    clip-path: polygon(100% 0, 100% 100%, 0 100%);
}

.hero-particles {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
}

.particle {
    position: absolute;
    background: var(--accent-primary);
    border-radius: 50%;
    opacity: 0.1;
    animation: float 20s infinite ease-in-out;
}

@keyframes float {
    0%, 100% { transform: translateY(0) translateX(0); }
    25% { transform: translateY(-30px) translateX(10px); }
    50% { transform: translateY(-20px) translateX(-10px); }
    75% { transform: translateY(-40px) translateX(5px); }
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-content {
    z-index: 1;
}

.hero-greeting {
    font-size: 1.1rem;
    color: var(--accent-primary);
    font-weight: 500;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.hero-greeting::before {
    content: '';
    width: 30px;
    height: 2px;
    background: var(--accent-primary);
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 16px;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    color: var(--text-secondary);
    margin-bottom: 24px;
    font-weight: 500;
}

.typing-text {
    color: var(--accent-primary);
}

.cursor {
    animation: blink 1s infinite;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 500px;
    margin-bottom: 32px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--accent-gradient);
    color: white;
    box-shadow: 0 4px 14px rgba(59, 130, 246, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.5);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 2px solid var(--border-color);
}

.btn-secondary:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

.btn-outline {
    background: transparent;
    color: var(--accent-primary);
    border: 2px solid var(--accent-primary);
}

.btn-outline:hover {
    background: var(--accent-primary);
    color: white;
}

.btn-large {
    padding: 18px 36px;
    font-size: 1.1rem;
}

.hero-socials {
    display: flex;
    gap: 16px;
}

.social-link {
    width: 48px;
    height: 48px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: var(--text-secondary);
    transition: all var(--transition-base);
}

.social-link:hover {
    background: var(--accent-primary);
    color: white;
    transform: translateY(-4px);
}

/* Hero Image */
.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.hero-image-wrapper {
    position: relative;
    width: 400px;
    height: 400px;
}

.hero-image-bg {
    position: absolute;
    inset: 0;
    background: var(--accent-gradient);
    border-radius: 50%;
    opacity: 0.1;
    filter: blur(60px);
    animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.1; }
    50% { transform: scale(1.1); opacity: 0.15; }
}

.hero-avatar {
    position: absolute;
    inset: 20px;
    background: var(--bg-card);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 120px;
    color: var(--accent-primary);
    box-shadow: var(--shadow-xl);
}

.floating-icons {
    position: absolute;
    inset: -40px;
}

.floating-icons i {
    position: absolute;
    width: 60px;
    height: 60px;
    background: var(--bg-card);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--accent-primary);
    box-shadow: var(--shadow-lg);
    animation: float-icon 6s ease-in-out infinite;
}

.floating-icons i:nth-child(1) { top: 0; left: 50%; transform: translateX(-50%); }
.floating-icons i:nth-child(2) { top: 50%; right: 0; transform: translateY(-50%); animation-delay: -1.5s; }
.floating-icons i:nth-child(3) { bottom: 0; left: 50%; transform: translateX(-50%); animation-delay: -3s; }
.floating-icons i:nth-child(4) { top: 50%; left: 0; transform: translateY(-50%); animation-delay: -4.5s; }

@keyframes float-icon {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-15px) rotate(5deg); }
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    color: var(--text-muted);
    font-size: 0.875rem;
    animation: bounce 2s infinite;
}

.mouse {
    width: 24px;
    height: 40px;
    border: 2px solid var(--text-muted);
    border-radius: 12px;
    display: flex;
    justify-content: center;
    padding-top: 8px;
}

.wheel {
    width: 4px;
    height: 8px;
    background: var(--accent-primary);
    border-radius: 2px;
    animation: scroll-wheel 2s infinite;
}

@keyframes scroll-wheel {
    0% { transform: translateY(0); opacity: 1; }
    100% { transform: translateY(12px); opacity: 0; }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
    40% { transform: translateX(-50%) translateY(-10px); }
    60% { transform: translateX(-50%) translateY(-5px); }
}

/* ============================================
   Section Common Styles
   ============================================ */
section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 60px;
}

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: var(--accent-primary);
    color: white;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-radius: 20px;
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
}

/* ============================================
   About Section
   ============================================ */
.about {
    background: var(--bg-secondary);
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 80px;
}

.about-card {
    background: var(--bg-card);
    padding: 32px 24px;
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all var(--transition-base);
    border: 1px solid var(--border-color);
}

.about-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--accent-primary);
}

.about-icon {
    width: 72px;
    height: 72px;
    background: var(--accent-gradient);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    color: white;
    margin: 0 auto 20px;
    transition: transform var(--transition-base);
}

.about-card:hover .about-icon {
    transform: scale(1.1) rotate(-5deg);
}

.about-card h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.about-card p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Stats */
.about-stats {
    display: flex;
    justify-content: center;
    gap: 80px;
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 3.5rem;
    font-weight: 700;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-suffix {
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-primary);
}

.stat-label {
    display: block;
    font-size: 1rem;
    color: var(--text-secondary);
    margin-top: 8px;
}

/* ============================================
   CV Section
   ============================================ */
.cv {
    background: var(--bg-primary);
}

.cv-download-wrapper {
    text-align: center;
    margin-bottom: 60px;
}

.cv-download-wrapper .btn {
    flex-direction: column;
    gap: 4px;
}

.cv-download-wrapper .btn i {
    font-size: 1.5rem;
}

.cv-download-wrapper .btn small {
    font-size: 0.8rem;
    font-weight: 400;
    opacity: 0.9;
}

/* Timeline */
.timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto 80px;
    padding: 0 20px;
}

.timeline-line {
    position: absolute;
    left: 40px;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--accent-gradient);
    border-radius: 3px;
}

.timeline-item {
    position: relative;
    padding-left: 80px;
    margin-bottom: 40px;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-marker {
    position: absolute;
    left: 0;
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.timeline-marker i {
    width: 50px;
    height: 50px;
    background: var(--accent-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: white;
    box-shadow: var(--shadow-lg);
    border: 4px solid var(--bg-primary);
}

.marker-education i {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
}

.timeline-content {
    background: var(--bg-card);
    padding: 28px 32px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    transition: all var(--transition-base);
}

.timeline-content:hover {
    box-shadow: var(--shadow-lg);
    transform: translateX(5px);
}

.timeline-date {
    display: inline-block;
    padding: 4px 12px;
    background: var(--bg-tertiary);
    color: var(--accent-primary);
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: 20px;
    margin-bottom: 12px;
}

.timeline-title {
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.timeline-company {
    font-size: 1rem;
    color: var(--accent-primary);
    font-weight: 500;
    margin-bottom: 16px;
}

.timeline-image {
    width: 100%;
    height: 160px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
    overflow: hidden;
}

.timeline-image i {
    font-size: 4rem;
    color: var(--accent-primary);
    opacity: 0.5;
}

.timeline-description {
    margin-bottom: 16px;
}

.timeline-description li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 8px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.timeline-description li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 8px;
    height: 8px;
    background: var(--accent-primary);
    border-radius: 50%;
}

.timeline-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag {
    padding: 4px 12px;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    font-size: 0.8rem;
    font-weight: 500;
    border-radius: 20px;
    transition: all var(--transition-fast);
}

.tag:hover {
    background: var(--accent-primary);
    color: white;
}

/* Skills Section */
.skills-section {
    background: var(--bg-secondary);
    padding: 60px;
    border-radius: var(--radius-xl);
}

.skills-title {
    text-align: center;
    font-size: 1.75rem;
    margin-bottom: 48px;
    color: var(--text-primary);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 48px;
}

.skill-category h4 {
    font-size: 1.125rem;
    margin-bottom: 24px;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.skill-category h4 i {
    color: var(--accent-primary);
}

.skill-item {
    margin-bottom: 20px;
}

.skill-name {
    display: block;
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.skill-bar {
    height: 8px;
    background: var(--bg-tertiary);
    border-radius: 4px;
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background: var(--accent-gradient);
    border-radius: 4px;
    width: 0;
    transition: width 1s ease;
}

/* ============================================
   Portfolio Section
   ============================================ */
.portfolio {
    background: var(--bg-secondary);
}

.portfolio-grid {
    display: grid;
    gap: 40px;
    max-width: 1000px;
    margin: 0 auto 60px;
}

.portfolio-card {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: all var(--transition-base);
}

.portfolio-card:hover {
    box-shadow: var(--shadow-xl);
    transform: translateY(-5px);
}

.portfolio-card.featured {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
}

.portfolio-image {
    position: relative;
    background: var(--bg-tertiary);
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.portfolio-icon-wrapper {
    width: 150px;
    height: 150px;
    background: var(--accent-gradient);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: white;
    box-shadow: var(--shadow-lg);
    transition: transform var(--transition-base);
}

.portfolio-card:hover .portfolio-icon-wrapper {
    transform: scale(1.1) rotate(-5deg);
}

.portfolio-icon-blue {
    background: linear-gradient(135deg, #3b82f6 0%, #06b6d4 100%);
}

.portfolio-overlay {
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.portfolio-card:hover .portfolio-overlay {
    opacity: 1;
}

.portfolio-link {
    width: 60px;
    height: 60px;
    background: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--accent-primary);
    transform: scale(0);
    transition: transform var(--transition-base);
}

.portfolio-card:hover .portfolio-link {
    transform: scale(1);
}

.portfolio-content {
    padding: 40px;
}

.portfolio-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}

.portfolio-tags .tag {
    background: var(--accent-primary);
    color: white;
}

.portfolio-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.portfolio-description {
    color: var(--text-secondary);
    margin-bottom: 24px;
    line-height: 1.7;
}

.portfolio-features {
    margin-bottom: 24px;
}

.portfolio-features h4 {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.portfolio-features ul {
    display: grid;
    gap: 8px;
}

.portfolio-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.portfolio-features li i {
    color: var(--success);
    font-size: 0.8rem;
}

.portfolio-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 24px;
}

.portfolio-tech span {
    padding: 6px 14px;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
    border-radius: 20px;
}

/* Additional Projects */
.additional-projects {
    max-width: 1000px;
    margin: 0 auto;
}

.subsection-title {
    text-align: center;
    font-size: 1.5rem;
    margin-bottom: 32px;
    color: var(--text-primary);
}

.mini-projects {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.mini-project {
    background: var(--bg-card);
    padding: 32px;
    border-radius: var(--radius-lg);
    text-align: center;
    border: 1px solid var(--border-color);
    transition: all var(--transition-base);
}

.mini-project:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.mini-project-icon {
    width: 64px;
    height: 64px;
    background: var(--accent-gradient);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
    margin: 0 auto 20px;
}

.mini-project h4 {
    font-size: 1.125rem;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.mini-project p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.6;
}

.mini-project-tag {
    display: inline-block;
    padding: 4px 12px;
    background: var(--bg-tertiary);
    color: var(--accent-primary);
    font-size: 0.8rem;
    font-weight: 600;
    border-radius: 20px;
}

/* ============================================
   Ambitions Section
   ============================================ */
.ambitions {
    background: var(--bg-primary);
}

.ambitions-content {
    max-width: 1000px;
    margin: 0 auto;
}

.ambition-intro {
    text-align: center;
    margin-bottom: 60px;
    position: relative;
}

.quote-icon {
    font-size: 3rem;
    color: var(--accent-primary);
    opacity: 0.3;
    margin-bottom: 16px;
}

.ambition-quote {
    font-size: 1.25rem;
    color: var(--text-secondary);
    font-style: italic;
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.8;
}

.ambitions-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-bottom: 60px;
}

.ambition-card {
    background: var(--bg-secondary);
    padding: 32px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    transition: all var(--transition-base);
}

.ambition-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-primary);
}

.ambition-icon {
    width: 56px;
    height: 56px;
    background: var(--accent-gradient);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
    margin-bottom: 20px;
}

.ambition-card h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.ambition-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 20px;
}

.ambition-points {
    display: grid;
    gap: 8px;
}

.ambition-points li {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.ambition-points li::before {
    content: '→';
    color: var(--accent-primary);
    font-weight: 700;
}

.ambition-summary {
    background: var(--bg-secondary);
    padding: 40px;
    border-radius: var(--radius-xl);
    text-align: center;
}

.ambition-summary h3 {
    font-size: 1.25rem;
    margin-bottom: 24px;
    color: var(--text-primary);
}

.opportunity-tags {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
}

.opp-tag {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    background: var(--bg-card);
    color: var(--text-primary);
    font-size: 0.95rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    transition: all var(--transition-fast);
}

.opp-tag:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

.opp-tag i {
    color: var(--accent-primary);
}

/* ============================================
   Contact Section
   ============================================ */
.contact {
    background: var(--bg-secondary);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
    max-width: 1000px;
    margin: 0 auto;
}

.contact-info h3 {
    font-size: 1.5rem;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.contact-intro {
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.7;
}

.contact-items {
    display: grid;
    gap: 16px;
    margin-bottom: 32px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 20px;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    transition: all var(--transition-base);
}

.contact-item:hover {
    border-color: var(--accent-primary);
    transform: translateX(5px);
}

.contact-linkedin:hover {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
}

.contact-linkedin:hover .contact-icon,
.contact-linkedin:hover .contact-details,
.contact-linkedin:hover .contact-arrow {
    color: white;
}

.contact-icon {
    width: 48px;
    height: 48px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: var(--accent-primary);
    flex-shrink: 0;
}

.contact-details {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.contact-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.contact-value {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.contact-arrow {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.contact-availability {
    padding: 20px;
    background: rgba(16, 185, 129, 0.1);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.availability-status {
    display: flex;
    align-items: center;
    gap: 12px;
}

.status-dot {
    width: 12px;
    height: 12px;
    background: var(--success);
    border-radius: 50%;
    animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.status-text {
    font-weight: 600;
    color: var(--success);
}

/* Contact Form */
.contact-form-wrapper {
    background: var(--bg-card);
    padding: 40px;
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-color);
}

.contact-form h3 {
    font-size: 1.25rem;
    margin-bottom: 24px;
    color: var(--text-primary);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group {
    position: relative;
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 16px 14px 44px;
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 1rem;
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.form-group textarea {
    padding-left: 16px;
    resize: vertical;
    min-height: 120px;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
}

.form-icon {
    position: absolute;
    left: 16px;
    top: 44px;
    color: var(--text-muted);
}

.form-group textarea + .form-icon {
    top: 16px;
}

.btn-submit {
    width: 100%;
    justify-content: center;
}

.form-note {
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
    font-size: 0.875rem;
    color: var(--text-muted);
    text-align: center;
}

.form-note a {
    color: var(--accent-primary);
    font-weight: 600;
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background: var(--bg-primary);
    padding: 60px 0 24px;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 40px;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 24px;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.footer-logo {
    width: 50px;
    height: 50px;
    background: var(--accent-gradient);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.25rem;
    color: white;
    margin-bottom: 12px;
}

.footer-brand p {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
}

.footer-tagline {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.footer-links {
    display: flex;
    gap: 32px;
}

.footer-links a {
    font-size: 0.95rem;
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--accent-primary);
}

.footer-social {
    display: flex;
    gap: 16px;
}

.footer-social a {
    width: 44px;
    height: 44px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: var(--text-secondary);
    transition: all var(--transition-base);
}

.footer-social a:hover {
    background: var(--accent-primary);
    color: white;
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
}

.footer-bottom p {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.footer-bottom i {
    color: var(--accent-primary);
}

/* ============================================
   Back to Top Button
   ============================================ */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--accent-gradient);
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: white;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-base);
    box-shadow: var(--shadow-lg);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(59, 130, 246, 0.4);
}

/* ============================================
   Toast Notification
   ============================================ */
.toast {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--success);
    color: white;
    padding: 16px 32px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 500;
    box-shadow: var(--shadow-xl);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    z-index: 1001;
}

.toast.show {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-content {
        order: 1;
    }
    
    .hero-image {
        order: 0;
        margin-bottom: 40px;
    }
    
    .hero-description {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-socials {
        justify-content: center;
    }
    
    .about-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    .portfolio-card.featured {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-info {
        order: 1;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: var(--navbar-height);
        left: 0;
        right: 0;
        background: var(--bg-navbar);
        flex-direction: column;
        padding: 24px;
        gap: 8px;
        border-bottom: 1px solid var(--border-color);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-base);
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-link {
        width: 100%;
        padding: 12px 16px;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-actions {
        margin-left: auto;
        margin-right: 16px;
    }
    
    .hero-image-wrapper {
        width: 280px;
        height: 280px;
    }
    
    .hero-avatar {
        font-size: 80px;
    }
    
    .floating-icons {
        inset: -20px;
    }
    
    .floating-icons i {
        width: 44px;
        height: 44px;
        font-size: 1.25rem;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
    }
    
    .about-stats {
        gap: 40px;
    }
    
    .stat-number {
        font-size: 2.5rem;
    }
    
    .timeline {
        padding: 0;
    }
    
    .timeline-line {
        left: 20px;
    }
    
    .timeline-item {
        padding-left: 60px;
    }
    
    .timeline-marker {
        width: 40px;
        height: 40px;
    }
    
    .timeline-marker i {
        width: 40px;
        height: 40px;
        font-size: 1rem;
        border-width: 3px;
    }
    
    .timeline-content {
        padding: 20px;
    }
    
    .skills-section {
        padding: 32px;
    }
    
    .mini-projects {
        grid-template-columns: 1fr;
    }
    
    .ambitions-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 32px;
        text-align: center;
    }
    
    .footer-brand {
        align-items: center;
    }
    
    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: 20px;
    }
}

@media (max-width: 480px) {
    .hero-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .portfolio-content {
        padding: 24px;
    }
    
    .contact-form-wrapper {
        padding: 24px;
    }
    
    .opportunity-tags {
        flex-direction: column;
    }
    
    .opp-tag {
        justify-content: center;
    }
}

/* Print Styles */
@media print {
    .navbar,
    .hero-socials,
    .scroll-indicator,
    .back-to-top,
    .footer-social,
    .contact-form-wrapper,
    .lang-switcher {
        display: none !important;
    }
    
    .hero {
        min-height: auto;
        padding: 40px 0;
    }
    
    section {
        padding: 40px 0;
    }
}